5) [8 Points] Consider two stocks: A and B. The expected returns of stocks A and B are 5% and 15% respectively. The standard deviations of stocks A and B are 15% and 30% respectively. The correlation coefficient between the returns of stocks A and B is 0.5. You construct a portfolio P that consists of 70% stock A and 30% stock B. a) [1 Point] Calculate the expected return of portfolio P. b) [2 Points) Calculate the standard deviation of portfolio P. c) [1 Points) State the value of the correlxtion coefficient between the returns of stocks A and B that would result in the lowest standard deviation of portfolio P. d) [4 Points] Explain the difference between unique risk and market risk. Explain how an investor can maintain the same level of expected return and reduce their exposure to unique risk. ece of machinery es an unfrog uires yo